Phase transfer catalysed N-monoalkylation of amino anthraquinones
1-Alkylaminoanthraquinones (2a-f) and 1,4-bisalkylaminoanthraquinones (4a-c) were prepared from aminoanthraquinones (1,3) by alkylation with alkyl sulphate/alkyl halide in presence of powdered sodium hydroxide, potassium carbonate and phase transfer catalyst.
Ramrao,Ramkumar,Anant,Ramanuja
p. 1129 - 1135
(2007/10/02)
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